Thomas Jørgensen

Thomas Jørgensen

  • Commented on Oh, 2022!
    The point of the natrium stunt is that the reactor outputs heat. The heat storage stores heat. No conversion losses, only insulation losses. The thermal output of the reactor is a lot more than 345. More like a thousand. If...
  • Commented on Oh, 2022!
    The BN-series design philosophy is kind of hilarious. The pure sodium loops are in fact very well behaved, because sodium plays well with structural steels even at very high temperatures. The issue is the steam generators. Steam generators are supposed...
  • Commented on Oh, 2022!
    The French and Swedish nuclear builds are the fastest grid transitions on record. It is entirely correct that we are not currently building reactors at a pace that matters at all. If the politics change, that changes too. That is...
  • Commented on Oh, 2022!
    And they are in fact entirely pointless. December saw output from the full gigawatt of solar panels in Denmark of 11000 and change mwh for the entire month. November and January were not much better. Those are the three months...
  • Commented on Oh, 2022!
    A continent wide auto-train network would make sense only if it replaced long distance highways. - as in, "We stop building those/lay tracks on the rights of way". And would require a really efficient system for off-and on-boarding cars. At...
  • Commented on Oh, 2022!
    Ive planned rail trips for family that cant fly for medical reasons. It is in fact possible to beat the Trondheim->scotland air trip on price. You just did your shopping wrong. You buy an interrail pass instead of actual tickets....
  • Commented on Oh, 2022!
    Nuclear uses rather less concrete than the alternatives. It uses large amounts of it yes, but Windmills are essentially sails on top of steel towers - the required anchors to keep that from toppling over are very, very large. And...
  • Commented on Oh, 2022!
    One of the many, many things tried on mice was an attempt at treating cognitive loss from repeated concussions by turning off the mechanism that puts stressed neurons into, well, basically hibernation. Turns out, this also reverses the cognitive decline...
  • Commented on Oh, 2022!
    A neighborhood where the entire street is essentially parking is not a problem for electric cars. It is an opportunity for the local utility. You rip up the sidewalk, put in a trickle charge point every car length, and bill...
  • Commented on Empire Games (and Merchant Princes): the inevitable spoiler thread!
    my personal theory is that bipedality evolved to optimize throwing. A rain of rocks makes predating on the early ancestor bands really unfeasible, which is a huge selective advantage and once you are heading down that path, "Being a better...
  • Commented on Empire Games (and Merchant Princes): the inevitable spoiler thread!
    Steam and heat are not meaningful problems at any plausible level of energy use, not even 12 billion people at first world levels would do it. CO2 emissions can move the needle on the global heat levels because they trap...
  • Commented on Invisible Sun: Themes and Nightmares
    3d printing might get you super interesting architecture, but if the permits are actually granted, very nice apartment blocks can be put up very, very quickly without resorting to such exotica. Concrete prefabs go up on steel frame with built...
  • Commented on Invisible Sun: Themes and Nightmares
    Housing in vast parts of the western world is priced out of all sanity because supply is artificially restricted. This.. honestly just does not seem like a stable equilibrium to me. At some point, wont people notice that nations and...
  • Commented on Invisible Sun: Themes and Nightmares
    In the extremely unlikely future where the entire NSG cuts them off, sure. Or you could secure yourself against such paranoia by just buying 2 more fuel loads with every sub from the word go. Nuclear fuel is not diesel,...
  • Commented on Invisible Sun: Themes and Nightmares
    The French design of naval reactors is that they use civilian enrichment grade fuel. Which means, you can refuel them unless you manage to get blacklisted by the entire Nuclear Suppliers Group. Heck, given Australia is a major uranium miner.....
  • Commented on Fossil fuels are dead (and here's why)
    Nuclear subs make a lot of sense for Aus. Lot of coast line, lot of tradelanes that need to be open. Conventional subs dont have the legs, and anything on the surface is way too vulnerable to mass missile strikes...
  • Commented on Fossil fuels are dead (and here's why)
    I am honestly just confused. Sure, the shortfin is a monstrosity nobody should ever buy.. but if the Australians have gotten over their fear of nuclear cooties, why the heck not just change the order already in progress to proper...
  • Commented on Invisible Sun: Themes and Nightmares
    If Star Treks writers had thought it through, then the transporter would have required a receiving and transmitting beacon. So step one is the enterprise launching a missile carrying one. This makes a lot of plots easier, because they can...
  • Commented on Fossil fuels are dead (and here's why)
    So, stepping slightly off the usual strange attractors of this forum, if beamed power is not practical, then what is the "has an economic return" use case for large volume launch capacity? A: Mining. And other very dirty industry. You...
  • Commented on Fossil fuels are dead (and here's why)
    Two projects. China has two molten salt projects. One is solid fuel, salt cooling, the other is full-bore molten salt. They also has a sodium cooled reactor project, which is basically a license build BN-series. Basically, their gen-4 reactor project...
  • Commented on Fossil fuels are dead (and here's why)
    http://samofar.eu/wp-content/uploads/2019/07/2019-TMSR-SAMOFAR%E2%80%94%E2%80%94Yang-ZOU-PDF-version-1.pdf overview of the plan, and pictures of the electricially heated test setup completed at the time. http://www.sinap.cas.cn/xwzx/kydt/202012/t20201223_5837422.html Newest news from SINAP as regards the project. ... I think this is saying they are loading the reactor with non-nuclear salts...
  • Commented on Fossil fuels are dead (and here's why)
    The Chinese salt reactor was supposed to go online in 2020, but Covid. - the plans have been public for years, and China has been publishing a fair bit of interesting stuff in the fields of molten salt corrosion control...
  • Commented on Fossil fuels are dead (and here's why)
    Re: Nautical reactors. The US designs are entirely useless for any civilian purpose, because what the US does is take a large amount of weapons grade fissile, then alloy it with burnable neutron poisons, then use that as reactor fuel....
  • Commented on Fossil fuels are dead (and here's why)
    What Denmark actually has that the UK does not is "Norway and Sweden". There is no Danish grid as such, there is only Nordpool. 1.7 gigawatts of interconnect into Norway, over two to Sweden. This would not be that much...
  • Commented on Fossil fuels are dead (and here's why)
    Denmark has one of the very best wind resources on the planet. We are still net importers to the tune of twenty percent of our total electricity consumption, and transient importers to much, much higher percentages than that. I have...
  • Commented on Fossil fuels are dead (and here's why)
    The fastest grid transformations on record were the Messmer plan, and the decision of Sweden get off oil for their non-hydro power. Nations have tried really hard to accomplish similar things without resorting to reactors, and well, not only has...
  • Commented on Because I am bored ...
    Looked up the tables for 1900. Horror show for under five with just shy of 20% mortality, but school age children had a 99 percent chance of making it to adulthood. So.. Yhea, that is mass murder....
  • Commented on Because I am bored ...
    Mentioned this before, but I think the US military is working on post-stealth doctrine. Sensors are getting better, and past a certain point, stealth is just not going to work - if "radars" sense air-flows for example, literally anything that...
  • Commented on Because I am bored ...
    Yes. It is straightforwardly a bank issuing notes "backed" by bitcoin, with much technobabble to disguise that fact, because the overwhelming majority of "investors" in bitcoin have.. let us say Issues with banks....
  • Commented on Because I am bored ...
    The reason people dont use Bitcoins for regular commerce is that it is literally not possible to do so. Remember that long explanation of the technical innards? Transactions are part of new blocks. New blocks are limited per week. Each...
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